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Windows 7: How do I reset my CMOS ?


18 Mar 2012   #1
NRT

Windows 7 Ultimate 64-bit SP1
 
 
How do I reset my CMOS ?

Hi,

Plz help me to reset my CMOS... Seems my CMOS data corrupted... Sometimes, I can't able to get into BIOS setup, as there is no option seen in the screen to enter by pressing DEL (I have a Gigabyte MB).. After couple of restarts, my MB showing me as normal that (Press DEL to enter setup).. help...

My System SpecsSystem Spec
.

18 Mar 2012   #2

Microsoft Community Contributor Award Recipient

Windows 7 SP1, Home Premium, 64-bit
 
 

You may be able to do it through the BIOS or by using a jumper.

But a sure-fire way to clear CMOS is to remove your PC's battery.

Turn the PC off and look for the battery.

The battery is mounted on the motherboard and looks like a coin. You can pry it out.

Leave it out for a half hour and then put it back in.
My System SpecsSystem Spec
18 Mar 2012   #3
NRT

Windows 7 Ultimate 64-bit SP1
 
 

Quote   Quote: Originally Posted by ignatzatsonic View Post
You may be able to do it through the BIOS or by using a jumper.
Wud u plz advice me to do it with Jumper ?
My System SpecsSystem Spec
.


18 Mar 2012   #4
NRT

Windows 7 Ultimate 64-bit SP1
 
 

is this same or will it reset CMOS by resetting Qflash in gigabyte MB ?
My System SpecsSystem Spec
18 Mar 2012   #5
Microsoft MVP

 

All options are illustrated here:

Clear CMOS - 3 Ways to Clear the CMOS - Reset BIOS
My System SpecsSystem Spec
18 Mar 2012   #6

Windows 7 Professional x64 Linux Mint 16
 
 

Quote   Quote: Originally Posted by ignatzatsonic View Post
You may be able to do it through the BIOS or by using a jumper.

But a sure-fire way to clear CMOS is to remove your PC's battery.

Turn the PC off and look for the battery.

The battery is mounted on the motherboard and looks like a coin. You can pry it out.

Leave it out for a half hour and then put it back in.
A half hour ????? A half hour ???? 10 seconds is all it needs.
My System SpecsSystem Spec
18 Mar 2012   #7

Windows 7 Professional x64 Linux Mint 16
 
 

Quote   Quote: Originally Posted by NRT View Post
Quote   Quote: Originally Posted by ignatzatsonic View Post
You may be able to do it through the BIOS or by using a jumper.
Wud u plz advice me to do it with Jumper ?
On the motherboard, usually near the cmos battery ( looks like a nickle ) there are 3 jumper pins. Two of them are connected by a small plastic cap. Move the cap to cover the other 2 jumper pins for 10 -12 seconds. Then put it back where it was. Reboot the computer and go back into the BIOS. You will have to reset the date and maybe a few other settings.

Some new boards such as my XFX board let you push a button on the input plate.
My System SpecsSystem Spec
18 Mar 2012   #8

Windows 8.1 Pro x64
 
 

I would replace the battery with a new one when you take it out, they are not expensive and you can but them anywhere they sell batteries for earphones etc.
My System SpecsSystem Spec
18 Mar 2012   #9
NRT

Windows 7 Ultimate 64-bit SP1
 
 

Quote   Quote: Originally Posted by AddRAM View Post
Quote   Quote: Originally Posted by NRT View Post
Quote   Quote: Originally Posted by ignatzatsonic View Post
You may be able to do it through the BIOS or by using a jumper.
Wud u plz advice me to do it with Jumper ?
On the motherboard, usually near the cmos battery ( looks like a nickle ) there are 3 jumper pins. Two of them are connected by a small plastic cap. Move the cap to cover the other 2 jumper pins for 10 -12 seconds. Then put it back where it was. Reboot the computer and go back into the BIOS. You will have to reset the date and maybe a few other settings.

Some new boards such as my XFX board let you push a button on the input plate.

mm.... I've looked there and my MB doesn't have jumper caps, there are only two pins cud be seen...
My System SpecsSystem Spec
19 Mar 2012   #10

Win 7 Pro x64 SP1, Win 7 Ult x86 SP1
 
 

I have a Gigabyte MB and there are only 2 pins, and no jumper cap.
I use a screwdriver to clear cmos.

Assuming your MB is the one listed in your specs yours works the same way as mine.

Here is link to your MB manual:
GIGABYTE - Motherboard - Socket AM3 - GA-M68MT-S2 (rev. 1.3)

this is from the manual:

10) CLR_CMOS (Clearing CMOS Jumper)
Use this jumper to clear the CMOS values (e.g.date information and BIOS configurations) and reset
the CMOS values to factory defaults. To clear the CMOS values, place a jumper cap on the two pins to temporarily short the two pins or use a metal object like a screwdriver to touch the two pins for a few seconds.
My System SpecsSystem Spec
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 How do I reset my CMOS ?




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